Parts
At HK Parts, we offer a wide range of high-quality Heckler and Koch accessories and components for your favorite firearms. Whether you are upgrading a Heckler and Koch pistol or rifle, or building with parts kits, we have you covered. Explore top-rated components for VP9, USP, P30, MP5, MP5K, G36, HK416, and more. From triggers, barrels, and grips to magazines, stocks, and sights, find the parts you need to enhance performance, reliability, and function.
Popular upgrades include match triggers, threaded barrels, compensators, optic plates, and extended magazines. Rifle owners often add enhanced stocks, forearms, and ambidextrous controls.
MP5 and MP5K kits are top sellers, giving shooters authentic components for iconic builds. G36 and HK416 kits are also highly sought after by collectors and professionals alike.
HKP offers the world’s largest H&K-focused catalog, with better availability, faster fulfillment, and expert support compared to general retailers.
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B&T APC223, APC300 Buttplate - Telescopic Stock
B&T Brugger & Thomet
$136.00B&T Telescopic Stock Buttplate - Brace Conversion Factory B&T replacement buttplate for B&T APC rifle caliber telescoping stocks. Can also be used to upgrade a B&T brace to a stock. Compatible With: B&T APC223/300/308 B&T...HKP-21753$136.00 -
Out Of Stock
B&T Takedown Pin Rear
B&T Brugger & Thomet
$12.95B&T APC Takedown Pin - Rear Factory B&T rear take down pin for the APC receiver. Compatible With: APC Series Standard receiver Glock receiver Sig receiverHKP-21727$12.95 -
Suppressor Cleaner Evolution - 1000ml
SchleTek
$70.00SchleTek Suppressor Cleaner Evolution 1000ml Keep your suppressors clean and optimally functioning with SchleTek suppressor cleaner.HKP-21726$70.00 -
Out Of Stock
HK416A5, HK417 Universal Tool
H&K Heckler & Koch
$129.95Heckler and Koch Universal Tool for HK416A5, HK417 Genuine HK multi-tool designed for the HK416A5 and HK417. Suitable for both bench and field use, this factory tool provides the essential functions needed for routine maintenance and adjustments. Compact...HKP-21621$129.95 -
HKP HK 416 .22 LR Flash Hider - Birdcage Style
HKP HK Parts
$39.95HKP HK 416 .22 LR Flash Hider - A5 Birdcage Style Upgrade your 416 .22 pistol with a direct mount on flash hider featuring a sleek A5 birdcage style for a truly custom look. Built to last with the highest quality and nitride finish. Thread: 8x...HKP-21577$39.95 -
HK MP5K Binary Trigger Group - Ambi - BFSIII - 9mm
FA Franklin Armory
$1,899.95Franklin Armory HK MP5K - BFSIII HK-C1 – Binary Trigger Group – Ambi 3 Position Housing In position 3 it will fire 1 round on pull and 1 round on release. With a 4.5 lb trigger pull, making this the fastest semi-automatic trigger on the...HKP-20933-M$1,899.95 -
HK SP5 Stock or Brace Adapter - AR M4 - QD Slint Attachment Point
HKP HK Parts
$159.95HKP HK SP5 AR, M4 Brace/Stock Adapter - QD Slint Attachment Point Each AR stock, brace adapter is made from a solid billet of CNC machined aircraft grade aluminum with QD sling attachment points and Cerakote finish for the best looking AR stock adapter...HKP-20725$159.95 -
Geissele HK 416 10.5" M-LOK Handguard - DDC
Geissele
$468.95Geissele HK 416 10.5" M-LOK Handguard - DDC The super modular rail HK416 MK15 M-LOK was designed to replace the standard rail on an HK416 or MR556 weapon platform. The rail system utilizes the stock HK barrel nut, but incorporates the strength, rigidity...HKP-20225$468.95 -
Out Of Stock
HK P2000, P2000SK Night Sight Set - HK09 - Green Front, Yellow Rear
Trijicon
$139.95Trijicon HK09 Yellow Rear & Green Front night sight set for HK P2000 & P2000SK pistols Trijicon Bright & Tough Night Sights are three-dot iron sights that increase night-fire shooting accuracy five times over conventional sights. Equally...HKP-08800$139.95 -
HK91, G3, MP5 Sear Catch - Steel - New Build
H&K Heckler & Koch
$69.95Heckler & Koch's Sear Catch Release - Complete For HK 90 Series Trigger Packs New HK German manufacture. Sear/Catch complete with installed detent, spring, and roll pin. Compatible With: HK MP5, HK MP5K HK91 HK G3 HK33, HK53, HK93 PTR Other 90...HKP-01459$69.95 -
HK UMP 2 Position Complete Lower
H&K Heckler & Koch
$579.95New HK German 2 Position Lower Complete New German Heckler & Koch UMP Lower. 2 position settings (S,F). Each lower comes complete with all the factory internals. This item is ideal for the USC to UMP conversion or to keep as a spare. Compatible...HKP-19117$579.95 -
GSG9 HK G36K Handguard
GSG9
$120.95HK G36K Forearm With Hand Stop & Heat Shield HK G36K length latest production HK G36K handguard with built in heat shield. Each unit features a built in hand stop with sling attachment points. Built in hard mounting points for adding picatinny rails...HKP-18217$120.95